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File name:

MonoInjecter.exe

Full analysis: https://app.any.run/tasks/92c28723-1cc5-4ca2-9e5e-328a87d61d85
Verdict: Malicious activity
Threats:

NanoCore is a Remote Access Trojan or RAT. This malware is highly customizable with plugins which allow attackers to tailor its functionality to their needs. Nanocore is created with the .NET framework and it’s available for purchase for just $25 from its “official” website.

Analysis date: August 17, 2019, 14:19:48
OS: Windows 7 Professional Service Pack 1 (build: 7601, 32 bit)
Tags:
rat
nanocore
trojan
Indicators:
MIME: application/x-dosexec
File info: PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows
MD5:

21CDF0063DE68849A2A05D76DD5AAA13

SHA1:

3341D8CF236C474868156C8386A292D575FD6949

SHA256:

643B79E0D27DB6AF3FCE46EE3ECAA11550F09766125FDF334BFE8E282DF801AE

SSDEEP:

12288:wLV6BtpmkgHAwY7zxGXSix6WyMqMF8yLBR4sLBodoDVHCzn:iApfvXUXLzxBR4I+oDcb

ANY.RUN is an interactive service which provides full access to the guest system. Information in this report could be distorted by user actions and is provided for user acknowledgement as it is. ANY.RUN does not guarantee maliciousness or safety of the content.
  • MALICIOUS

    • Changes the autorun value in the registry

      • MonoInjecter.exe (PID: 3776)
      • MonoInjecter.exe (PID: 3964)
    • NanoCore was detected

      • MonoInjecter.exe (PID: 3776)
      • MonoInjecter.exe (PID: 3964)
    • Uses Task Scheduler to run other applications

      • MonoInjecter.exe (PID: 3964)
    • Loads the Task Scheduler COM API

      • schtasks.exe (PID: 3076)
      • schtasks.exe (PID: 4064)
    • NANOCORE was detected

      • MonoInjecter.exe (PID: 3964)
    • Connects to CnC server

      • MonoInjecter.exe (PID: 3964)
  • SUSPICIOUS

    • Executable content was dropped or overwritten

      • MonoInjecter.exe (PID: 3776)
      • MonoInjecter.exe (PID: 3964)
    • Creates files in the user directory

      • MonoInjecter.exe (PID: 3776)
      • MonoInjecter.exe (PID: 3964)
    • Application launched itself

      • MonoInjecter.exe (PID: 3776)
    • Creates files in the program directory

      • MonoInjecter.exe (PID: 3964)
  • INFO

    No info indicators.
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
No Malware configuration.

TRiD

.exe | Generic CIL Executable (.NET, Mono, etc.) (63.1)
.exe | Win64 Executable (generic) (23.8)
.dll | Win32 Dynamic Link Library (generic) (5.6)
.exe | Win32 Executable (generic) (3.8)
.exe | Generic Win/DOS Executable (1.7)

EXIF

EXE

MachineType: Intel 386 or later, and compatibles
TimeStamp: 2015:02:22 01:49:37+01:00
PEType: PE32
LinkerVersion: 6
CodeSize: 116736
InitializedDataSize: 449024
UninitializedDataSize: -
EntryPoint: 0x1e792
OSVersion: 4
ImageVersion: -
SubsystemVersion: 4
Subsystem: Windows GUI

Summary

Architecture: IMAGE_FILE_MACHINE_I386
Subsystem: IMAGE_SUBSYSTEM_WINDOWS_GUI
Compilation Date: 22-Feb-2015 00:49:37

DOS Header

Magic number: MZ
Bytes on last page of file: 0x0090
Pages in file: 0x0003
Relocations: 0x0000
Size of header: 0x0004
Min extra paragraphs: 0x0000
Max extra paragraphs: 0xFFFF
Initial SS value: 0x0000
Initial SP value: 0x00B8
Checksum: 0x0000
Initial IP value: 0x0000
Initial CS value: 0x0000
Overlay number: 0x0000
OEM identifier: 0x0000
OEM information: 0x0000
Address of NE header: 0x00000080

PE Headers

Signature: PE
Machine: IMAGE_FILE_MACHINE_I386
Number of sections: 3
Time date stamp: 22-Feb-2015 00:49:37
Pointer to Symbol Table: 0x00000000
Number of symbols: 0
Size of Optional Header: 0x00E0
Characteristics:
  • IMAGE_FILE_32BIT_MACHINE
  • IMAGE_FILE_EXECUTABLE_IMAGE
  • IMAGE_FILE_LINE_NUMS_STRIPPED
  • IMAGE_FILE_LOCAL_SYMS_STRIPPED

Sections

Name
Virtual Address
Virtual Size
Raw Size
Charateristics
Entropy
.text
0x00002000
0x0001C798
0x0001C800
IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ
6.59806
.reloc
0x00020000
0x0000000C
0x00000200
IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_DISCARDABLE, IMAGE_SCN_MEM_READ
0.10191
.rsrc
0x00022000
0x0006D768
0x0006D800
IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ
7.99951

Resources

Title
Entropy
Size
Codepage
Language
Type
1
7.99954
448272
Latin 1 / Western European
UNKNOWN
RT_RCDATA

Imports

mscoree.dll
No data.
screenshotscreenshotscreenshot
All screenshots are available in the full report
All screenshots are available in the full report
Total processes
41
Monitored processes
4
Malicious processes
2
Suspicious processes
0

Behavior graph

Click at the process to see the details
drop and start start #NANOCORE monoinjecter.exe #NANOCORE monoinjecter.exe schtasks.exe no specs schtasks.exe no specs

Process information

PID
CMD
Path
Indicators
Parent process
3776"C:\Users\admin\AppData\Local\Temp\MonoInjecter.exe" C:\Users\admin\AppData\Local\Temp\MonoInjecter.exe
explorer.exe
User:
admin
Integrity Level:
MEDIUM
Exit code:
0
3964"C:\Users\admin\AppData\Local\Temp\MonoInjecter.exe" C:\Users\admin\AppData\Local\Temp\MonoInjecter.exe
MonoInjecter.exe
User:
admin
Integrity Level:
HIGH
3076"schtasks.exe" /create /f /tn "TCP Monitor" /xml "C:\Users\admin\AppData\Local\Temp\tmp9F90.tmp"C:\Windows\system32\schtasks.exeMonoInjecter.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
HIGH
Description:
Manages scheduled tasks
Exit code:
0
Version:
6.1.7600.16385 (win7_rtm.090713-1255)
4064"schtasks.exe" /create /f /tn "TCP Monitor Task" /xml "C:\Users\admin\AppData\Local\Temp\tmpA02D.tmp"C:\Windows\system32\schtasks.exeMonoInjecter.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
HIGH
Description:
Manages scheduled tasks
Exit code:
0
Version:
6.1.7600.16385 (win7_rtm.090713-1255)
Total events
406
Read events
399
Write events
6
Delete events
1

Modification events

(PID) Process:(3776) MonoInjecter.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
Operation:writeName:TCP Monitor
Value:
C:\Users\admin\AppData\Roaming\90059C37-1320-41A4-B58D-2B75A9850D2F\TCP Monitor\tcpmon.exe
(PID) Process:(3776) MonoInjecter.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap
Operation:writeName:UNCAsIntranet
Value:
0
(PID) Process:(3776) MonoInjecter.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap
Operation:writeName:AutoDetect
Value:
1
(PID) Process:(3964) MonoInjecter.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run
Operation:writeName:TCP Monitor
Value:
C:\Program Files\TCP Monitor\tcpmon.exe
(PID) Process:(3964) MonoInjecter.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
Operation:delete valueName:TCP Monitor
Value:
C:\Users\admin\AppData\Roaming\90059C37-1320-41A4-B58D-2B75A9850D2F\TCP Monitor\tcpmon.exe
Executable files
2
Suspicious files
2
Text files
1
Unknown types
1

Dropped files

PID
Process
Filename
Type
3964MonoInjecter.exeC:\Users\admin\AppData\Local\Temp\tmp9F90.tmp
MD5:
SHA256:
3964MonoInjecter.exeC:\Users\admin\AppData\Local\Temp\tmpA02D.tmp
MD5:
SHA256:
3964MonoInjecter.exeC:\Program Files\TCP Monitor\tcpmon.exeexecutable
MD5:21CDF0063DE68849A2A05D76DD5AAA13
SHA256:643B79E0D27DB6AF3FCE46EE3ECAA11550F09766125FDF334BFE8E282DF801AE
3776MonoInjecter.exeC:\Users\admin\AppData\Roaming\90059C37-1320-41A4-B58D-2B75A9850D2F\run.datbinary
MD5:14F59755EFDBA67CF50B9E827CB1A647
SHA256:C20F13F66D1CEC54A78CE1764CFE2354F083D9132AB01C0143BD7ECD21C02EC0
3964MonoInjecter.exeC:\Users\admin\AppData\Roaming\90059C37-1320-41A4-B58D-2B75A9850D2F\task.dattext
MD5:C10FDB75C3C310C6DCB17CCB2964758D
SHA256:D5787AC4C69AB5B7D5319C4D3188C29A19FC23CEB37ACD1EA5A4AD53970FE170
3776MonoInjecter.exeC:\Users\admin\AppData\Roaming\90059C37-1320-41A4-B58D-2B75A9850D2F\TCP Monitor\tcpmon.exeexecutable
MD5:21CDF0063DE68849A2A05D76DD5AAA13
SHA256:643B79E0D27DB6AF3FCE46EE3ECAA11550F09766125FDF334BFE8E282DF801AE
3964MonoInjecter.exeC:\Users\admin\AppData\Roaming\90059C37-1320-41A4-B58D-2B75A9850D2F\catalog.datbs
MD5:32D0AAE13696FF7F8AF33B2D22451028
SHA256:5347661365E7AD2C1ACC27AB0D150FFA097D9246BB3626FCA06989E976E8DD29
3964MonoInjecter.exeC:\Users\admin\AppData\Roaming\90059C37-1320-41A4-B58D-2B75A9850D2F\settings.binbinary
MD5:4E5E92E2369688041CC82EF9650EDED2
SHA256:F8098A6290118F2944B9E7C842BD014377D45844379F863B00D54515A8A64B48
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
0
TCP/UDP connections
2
DNS requests
2
Threats
0

HTTP requests

No HTTP requests
Download PCAP, analyze network streams, HTTP content and a lot more at the full report

Connections

PID
Process
IP
Domain
ASN
CN
Reputation
3964
MonoInjecter.exe
8.8.8.8:53
Google Inc.
US
whitelisted
3964
MonoInjecter.exe
3.19.114.185:19924
0.tcp.ngrok.io
US
shared

DNS requests

Domain
IP
Reputation
0.tcp.ngrok.io
  • 3.19.114.185
shared

Threats

PID
Process
Class
Message
3964
MonoInjecter.exe
Potential Corporate Privacy Violation
ET POLICY DNS Query to a *.ngrok domain (ngrok.io)
3964
MonoInjecter.exe
Potential Corporate Privacy Violation
ET POLICY DNS Query to a *.ngrok domain (ngrok.io)
3964
MonoInjecter.exe
Misc Attack
ET TOR Known Tor Relay/Router (Not Exit) Node Traffic group 452
3964
MonoInjecter.exe
A Network Trojan was detected
ET TROJAN Possible NanoCore C2 60B
3964
MonoInjecter.exe
A Network Trojan was detected
MALWARE [PTsecurity] NanoCore.RAT
3964
MonoInjecter.exe
A Network Trojan was detected
MALWARE [PTsecurity] NanoCore.RAT
3964
MonoInjecter.exe
A Network Trojan was detected
MALWARE [PTsecurity] NanoCore.RAT
3964
MonoInjecter.exe
A Network Trojan was detected
ET TROJAN Possible NanoCore C2 60B
3964
MonoInjecter.exe
A Network Trojan was detected
MALWARE [PTsecurity] NanoCore.RAT
3 ETPRO signatures available at the full report
No debug info